Question

Which of the following devices is used for measuring potential difference between two points in an electric circuit?

A

potentiometer

B

ammeter

C

voltmeter

D

galvanometer

Medium

Solution

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Correct option is C)

Potential difference between two points is measured using voltmeter. It is connected in parallel to the points where potential difference is to be measured.  
Ideally voltmeter should have very large resistance so that it doesn't draw any current.  

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